"pi-star" 'hats' for AllStar nodes?

App_rpt-users
1

Curious if possible, if anyone has considered, better actually done, “the code” to use the ever-present variations of the chip-radio boards that are used for the various DMR, D-Star, etc. hotspots?

Probably answered my own question looking at the data sheet for the AD7021 - no analog to fetch or apply - hmmm. DMR over AllStar link wouldn’t sound very good… :open_mouth:

OK, so a hybrid? Instead of gutting whole Chinese radios to get around to the radio chip, an “AllStar hat” using an FM chip radio, CM108 or CM109 on the same board. ‘Quick’ to tell the chip what freq it should be on? PL? SQ level…

Just noodling. With the number of new hams who seem more interested in things digital vs RF and analog (or good at soldering, etc.) - this could be another “hot toy”.

2

It has been discussed. Someone has done it. I think it’s called
clearnode (or some variation on that name)

···

On 1/9/20 8:45 PM, Jim Aspinwall No1PC
via AllStarLink Discussion Groups wrote:

Jim_Aspinwall_No1PC
Jim_Aspinwall_No1PC

              January 10
          Curious if possible, if

anyone has considered, better actually done, “the code” to
use the ever-present variations of the chip-radio boards
that are used for the various DMR, D-Star, etc. hotspots?

          Probably answered my own

question looking at the data sheet for the AD7021 - no
analog to fetch or apply - hmmm. DMR over AllStar link
wouldn’t sound very good… :open_mouth:

          OK, so a hybrid? Instead

of gutting whole Chinese radios to get around to the radio
chip, an “AllStar hat” using an FM chip radio, CM108 or
CM109 on the same board. ‘Quick’ to tell the chip what
freq it should be on? PL? SQ level…

          Just noodling. With the

number of new hams who seem more interested in things
digital vs RF and analog (or good at soldering, etc.) -
this could be another “hot toy”.

Visit
Topic or reply to this email to respond.

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3

$295 !!! Yikes. https://www.node-ventures.com/buy-clearnode

4

Yep,
It looks like a nice package. A couple of years ago, we proposed
this type of board to a couple of hardware vendors, nothing came of
it.

···

On 1/9/20 10:05 PM, Jim Aspinwall No1PC
via AllStarLink Discussion Groups wrote:

Jim_Aspinwall_No1PC
Jim_Aspinwall_No1PC

              January 10

$295 !!! Yikes. https://www.node-ventures.com/buy-clearnode

Visit
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5

Here is an article describing an inexpensive option for an Allstar-DMR bridge.

6

Definitely not looking to bring DMR into the mix, at least not for the linked systems I’m working with.

This appears to be closest to suit the concept - but would take some interface work and of course some new code/module to load vs USBRadio/SimpleUSB, etc. That’s about the extent of my guess-work so far.

7

That looks promising. My ONLY concern is soldering the surface mount devices. I would order one tomorrow if it had the SMD soldered or as a assembled device.

Now add a CM1x sound device and you have a low power ASL radio.

Steve N4IRS

8

SHARI (www.hamprojects.info/shari) is not a “hat” but it does plug directly into two USB ports on a Raspberry Pi. It uses the NiceRF SA-818AU module which contains the RDA1846 radio IC used in many Chinese radios like the UV-5R and the BF-888S. It uses the CM119B on the surface mount board.

9

Steve,

I think the SMD items are installed, it says you only need to place the SMA and header.

10

Thanks, I misread SMA as SMD

11

SHARI looks good. I’m not a fan of the male connectors but I understand the reasoning. I don’t see the radio programming SW on the site or groups.io.

hmmm… (reaching for my paypal)